Download MailWasher Pro from http://www.firetrust.com/en/products/mailwasher-pro/download
Double click on the downloaded file and the installation will begin. It is a very easy installation and when finished will ask if you want to start the program file. If you click ok, MailWasher will start and ask if you want to import your existing email account or manually add one. Once this is done, MailWasher will check that account for email.
Note: If you have all Windows updates installed for Windows XP and Vista, the installation will be seamless. Otherwise you may be prompted to install .Net 4